3 Replies Latest reply on Apr 17, 2013 12:09 PM by user_264321

    CY3210- PSoCEval1

       my kit was working good..but now if i've to display LCD its showing boxes in display...before also it happens once...then it started working again..now it again created problem.

        • 1. Re: CY3210- PSoCEval1

          Some suggestions -




          1) Clean the pin header the LCD plugs into. Use 90% alcohol.


          2) Make sure contrast pot R6 is cleaned and adjusted.


          3) Make sure you are issuing start command to LCD to initialize it.




          Regards, Dana.

          • 2. Re: CY3210- PSoCEval1





            Are you able to see all the boxes on both the lines of display? If that's the case the contrast is too high. Pls adjust the R6 potentiometer named LCD contrast until it dims.

            • 3. Re: CY3210- PSoCEval1

              Something similar happens ocacionally with my CY8CKIT-50 (non LP version)


              When I plug it to the USB port the first line of the LCD will show boxes while the second line is still off. It hapens ocacionally so i just unplug it and plug it again and everything works.


              after some investigation, it turns out  that in such ocations the PSOC5 chip in it is not running properly and has all its pins in open drain outputs (as indicated by the powered LEDs on the pins )